Method

Main

1

For cola syrup, stir ingredients, except juices, vanilla and citric acid, with 300ml water in a saucepan over medium heat to dissolve sugar, bring to the simmer, then reduce heat to low and simmer to develop flavours (5 minutes). Cool (about 1 hour), then stir in juices, vanilla and citric acid, strain through a fine sieve and refrigerate in a sealed bottle. Makes about 600ml. Cola syrup will keep for a month.

2

To serve, finely crush ice in a food processor and pack into serving cups or dishes, drizzle with cola syrup and squeeze lime juice over the top.